Over the last five years, Tyrone Crawford has been one of the Cowboys’ three best pass rushers.

Crawford is a Dallas Cowboy in 2019, not only because he is a really good player, but because he offers positional flexibility. That may not be totally fair to Tyrone, but he’s made a pretty good living off being the guy who can play both defensive end and defensive tackle based on his team’s needs.

We can learn a lot by studying the career of Tyrone Crawford, and that’s how we get to Iowa defensive lineman Anthony Nelson. A Top 100 prospect in the 2019 draft, Anthony Nelson is a defensive end first, but he has the ability to play inside as well, provided he gets a little bit stronger.

We’ll break down Nelson in depth, but I think it’s interesting to look at Crawford’s trajectory first, because he could end up following it.

Crawford was drafted 81st overall in 2012. At the time the Cowboys were playing in a 3-4 defense. Crawford...